世界一

The richest man in the world cannot buy everything

That is the highest mountain in the world

While American methods are often successful, the Japanese educational system that produces the most literate people in the world surely has some lessons to teach the U.S

It is said that he is the richest man in the world

In 2000 Japan's health care system was the best in the world, but since clinical internship was introduced in 2003 it has clearly deteriorated

America is second to none in natural resources